Frozen lock heater



FIG. 1 is a perspective view of a frozen lock heater showing my new design.

FIG. 2 is a front end elevation view thereof.

FIG. 3 is a rear end elevation view thereof.

FIG. 4 is a right side elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a frozen lock heater, as shown. 